Patents by Inventor Martin J. Hardesty

Martin J. Hardesty has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11970368
    Abstract: A belt for an elevator system includes one or more tension members extending along a belt length, and a jacket at least partially encapsulating the one or more tension members. The jacket defines a traction surface configured to interface with a traction sheave of the elevator system, a back surface opposite the traction surface, and two edge surfaces extending between the traction surface and the back surface. The traction surface includes a convex shaped segment extending at least partially across the traction surface between the two edge surfaces.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: April 30, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Mark R. Gurvich, Martin J. Hardesty
  • Patent number: 11673769
    Abstract: An illustrative example embodiment of an elevator system includes a machine including a motor and a brake. The machine is configured to selectively cause movement of an elevator car. At least one vibration sensor situated near the machine provides an indication of operation of the machine to indicate at least stops and starts of the machine associated with stopping and starting movement of the elevator car.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: June 13, 2023
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Sandeep Sudi, Michael C. Lang, Martin J. Hardesty
  • Patent number: 11377323
    Abstract: A method is disclosed of retrofitting an elevator machine with primary and secondary braking, the machine being disposed on a machine support frame in an elevator machine room, and engaging one or more ropes for providing selective movement of an elevator car disposed in an elevator shaft, the machine having a drive sheave including a cylindrical brake drum, and brake components including dual brake arms; the method including: removing the brake components; affixing flanged disc segments about the drum and interlocking the flanged disc segments to form a brake rotor; and mounting respective brake calipers to frame mounts for providing primary and secondary braking to the elevator machine.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: July 5, 2022
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
  • Patent number: 11299374
    Abstract: Disclosed is a method for retrofitting an elevator machine with a thrust bearing, including removing, from a bearing stand, a first cover plate, providing access to an end portion of a motor shaft, securing an extension shaft against the end portion of the motor shaft, securing a thrust bearing housing against or axially offset from the bearing stand, positioning a thrust bearing in the bearing housing, wherein an inner race of the thrust bearing is securely positioned against, and axially fixed to, the extension shaft, and an outer race of the thrust bearing is securely positioned against the bearing housing, and securing a second cover plate to the bearing housing.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: April 12, 2022
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
  • Publication number: 20200270100
    Abstract: Disclosed is a method for retrofitting an elevator machine with a thrust bearing, including removing, from a bearing stand, a first cover plate, providing access to an end portion of a motor shaft, securing an extension shaft against the end portion of the motor shaft, securing a thrust bearing housing against or axially offset from the bearing stand, positioning a thrust bearing in the bearing housing, wherein an inner race of the thrust bearing is securely positioned against, and axially fixed to, the extension shaft, and an outer race of the thrust bearing is securely positioned against the bearing housing, and securing a second cover plate to the bearing housing.
    Type: Application
    Filed: May 8, 2020
    Publication date: August 27, 2020
    Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
  • Patent number: 10737908
    Abstract: Disclosed is a method for retrofitting an elevator machine with a thrust bearing, including removing, from a bearing stand, a first cover plate, providing access to an end portion of a motor shaft, securing an extension shaft against the end portion of the motor shaft, securing a thrust bearing housing against or axially offset from the bearing stand, positioning a thrust bearing in the bearing housing, wherein an inner race of the thrust bearing is securely positioned against, and axially fixed to, the extension shaft, and an outer race of the thrust bearing is securely positioned against the bearing housing, and securing a second cover plate to the bearing housing.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: August 11, 2020
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
  • Publication number: 20200207580
    Abstract: A method is disclosed of retrofitting an elevator machine with primary and secondary braking, the machine being disposed on a machine support frame in an elevator machine room, and engaging one or more ropes for providing selective movement of an elevator car disposed in an elevator shaft, the machine having a drive sheave including a cylindrical brake drum, and brake components including dual brake arms; the method including: removing the brake components; affixing flanged disc segments about the drum and interlocking the flanged disc segments to form a brake rotor; and mounting respective brake calipers to frame mounts for providing primary and secondary braking to the elevator machine.
    Type: Application
    Filed: March 9, 2020
    Publication date: July 2, 2020
    Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
  • Patent number: 10618775
    Abstract: A method is disclosed of retrofitting an elevator machine with primary and secondary braking, the machine being disposed on a machine support frame in an elevator machine room, and engaging one or more ropes for providing selective movement of an elevator car disposed in an elevator shaft, the machine having a drive sheave including a cylindrical brake drum, and brake components including dual brake arms; the method including: removing the brake components; affixing flanged disc segments about the drum and interlocking the flanged disc segments to form a brake rotor; and mounting respective brake calipers to frame mounts for providing primary and secondary braking to the elevator machine.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: April 14, 2020
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
  • Publication number: 20200062544
    Abstract: An illustrative example embodiment of an elevator system includes a machine including a motor and a brake. The machine is configured to selectively cause movement of an elevator car. At least one vibration sensor situated near the machine provides an indication of operation of the machine to indicate at least stops and starts of the machine associated with stopping and starting movement of the elevator car.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 27, 2020
    Inventors: Sandeep Sudi, Michael C. Lang, Martin J. Hardesty
  • Publication number: 20190382241
    Abstract: A belt for an elevator system includes one or more tension members extending along a belt length, and a jacket at least partially encapsulating the one or more tension members. The jacket defines a traction surface configured to interface with a traction sheave of the elevator system, a back surface opposite the traction surface, and two edge surfaces extending between the traction surface and the back surface. The traction surface includes a convex shaped segment extending at least partially across the traction surface between the two edge surfaces.
    Type: Application
    Filed: June 18, 2018
    Publication date: December 19, 2019
    Inventors: Mark R. Gurvich, Martin J. Hardesty
  • Publication number: 20180141783
    Abstract: Disclosed is a method for retrofitting an elevator machine with a thrust bearing, including removing, from a bearing stand, a first cover plate, providing access to an end portion of a motor shaft, securing an extension shaft against the end portion of the motor shaft, securing a thrust bearing housing against or axially offset from the bearing stand, positioning a thrust bearing in the bearing housing, wherein an inner race of the thrust bearing is securely positioned against, and axially fixed to, the extension shaft, and an outer race of the thrust bearing is securely positioned against the bearing housing, and securing a second cover plate to the bearing housing.
    Type: Application
    Filed: November 22, 2016
    Publication date: May 24, 2018
    Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
  • Publication number: 20180141781
    Abstract: A method is disclosed of retrofitting an elevator machine with primary and secondary braking, the machine being disposed on a machine support frame in an elevator machine room, and engaging one or more ropes for providing selective movement of an elevator car disposed in an elevator shaft, the machine having a drive sheave including a cylindrical brake drum, and brake components including dual brake arms; the method including: removing the brake components; affixing flanged disc segments about the drum and interlocking the flanged disc segments to form a brake rotor; and mounting respective brake calipers to frame mounts for providing primary and secondary braking to the elevator machine.
    Type: Application
    Filed: November 18, 2016
    Publication date: May 24, 2018
    Inventors: Daniel B. Davis, III, Robert K. Williams, John Eschenbrenner, Gregory M. O'Seep, James L. Hubbard, Martin J. Hardesty, Bruce P. Swaybill, Jesse R. Richter, Gary P. Mendrala, Patricia Derwinski, Christopher H. Koenig
  • Patent number: 9884744
    Abstract: A method (160) for constructing a building (92) with an elevator system (20) is disclosed. The method (160) may include forming a first hoistway (22) for the elevator system (20) within two adjacent levels (82, 84) of the building (92), installing a first stationary part (54) of a first linear permanent magnet motor within the first hoistway (22), placing a first elevator car (24) within the first hoistway (22), mounting a first moving part (52) of the first linear permanent magnet motor on the first elevator car (24), and using the first stationary part (54) and the first moving part (52) of the first linear permanent magnet motor to generate a vertical thrust force to move the first elevator car (24) within the first hoistway (22), the first elevator car (24) carrying at least one of passengers, equipment and materials for construction of upper levels of the elevator system (20) and the building (92).
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: February 6, 2018
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Tadeusz Witczak, Martin J. Hardesty, Zbigniew Piech
  • Publication number: 20180029832
    Abstract: A method of installing an elevator system in a hoistway includes loading an elevator car with elevator system components for installation. The elevator car includes a first deck including one or more linear drive elements operably connected to a linear drive system at the hoistway and a second deck abutting the first deck, and separated from the first deck by a floor. The second deck is at least partially open at one side to allow access to the hoistway for installation of elevator system components in the hoistway. The elevator car is urged along the hoistway to an installation zone and the elevator system components are installed to the hoistway from the at least partially open second deck.
    Type: Application
    Filed: February 4, 2016
    Publication date: February 1, 2018
    Inventors: Richard N. Fargo, Tadeusz Witczak, Martin J. Hardesty, Zbigniew Piech
  • Patent number: 9776832
    Abstract: An elevator system includes a car, configured to travel through a hoistway; a first stationary drive unit, configured to be mounted in a hoistway, a first movable drive unit, configured to be functionally coupled to the car and to the first stationary drive unit, and a second movable drive unit, configured to be functionally coupled to the car and to the first stationary drive unit.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: October 3, 2017
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Tadeusz Pawel Witczak, Richard N. Fargo, Martin J. Hardesty
  • Publication number: 20160304317
    Abstract: A method (160) for constructing a building (92) with an elevator system (20) is disclosed. The method (160) may include forming a first hoistway (22) for the elevator system (20) within two adjacent levels (82, 84) of the building (92), installing a first stationary part (54) of a first linear permanent magnet motor within the first hoistway (22), placing a first elevator car (24) within the first hoistway (22), mounting a first moving part (52) of the first linear permanent magnet motor on the first elevator car (24), and using the first stationary part (54) and the first moving part (52) of the first linear permanent magnet motor to generate a vertical thrust force to move the first elevator car (24) within the first hoistway (22), the first elevator car (24) carrying at least one of passengers, equipment and materials for construction of upper levels of the elevator system (20) and the building (92).
    Type: Application
    Filed: December 5, 2013
    Publication date: October 20, 2016
    Inventors: Tadeusz Witczak, Martin J. Hardesty, Zbigniew Piech
  • Patent number: 9365395
    Abstract: A load bearing member for supporting an elevator car has a plurality of tension members that bear the weight of the elevator car. The plurality of tension members extends along a length. An outer cover at least partially covers the plurality of tension members and has a first surface and a second surface.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: June 14, 2016
    Assignee: Otis Elevator Company
    Inventors: Richard N. Fargo, Jun Ma, Mark R. Gurvich, Martin J. Hardesty
  • Publication number: 20160101966
    Abstract: Embodiments are directed reducing the size of an elevator machine by establishing an envelope associated with a sheave of the machine, and recessing at least one bearing associated with the machine at least partially within the envelope. Embodiments are directed to an elevator machine comprising a motor, a sheave, and a plurality of bearings recessed at least partially within an envelope of at least one of the motor and sheave.
    Type: Application
    Filed: May 22, 2014
    Publication date: April 14, 2016
    Inventors: Zlatko Strbuncelj, James L. Hubbard, Zbigniew Piech, Martin J. Hardesty, Glen Levenson
  • Publication number: 20150368071
    Abstract: An elevator system includes a car, configured to travel through a hoistway; a first stationary drive unit, con figured to be mounted in a hoistway, a first movable drive unit, configured to be functionally coupled to the car and to Drive the first stationary drive unit, and a second movable drive unit, configured to be functionally coupled to the car and to the first stationary drive unit.
    Type: Application
    Filed: February 6, 2013
    Publication date: December 24, 2015
    Inventors: Tadeusz Pawel Witczak, Richard N. Fargo, Martin J. Hardesty
  • Publication number: 20140008153
    Abstract: A load bearing member for supporting an elevator car has a plurality of tension members that bear the weight of the elevator car. The plurality of tension members extends along a length. An outer cover at least partially covers the plurality of tension members and has a first surface and a second surface.
    Type: Application
    Filed: September 11, 2013
    Publication date: January 9, 2014
    Applicant: OTIS ELEVATOR COMPANY
    Inventors: Richard N. FARGO, Jun MA, Mark R. GURVICH, Martin J. HARDESTY